Android SMS Application Issue..!!!!(Port Number)

Messaging APP:
Is it possible to use port numbers(to Send SMS) in Android App like we use in J2ME. So that only those App which have the same Port Number
can listen.

Problem Faced:
There is an Application X in Both Users A & B.
When we tried sending SMS from A to B using our X Messaging Application, The message will go to our App Inbox as well as Native Messaging.

Ex:
There is an Application X in Both Users A & B.
A sends sms to B. Only X's INBOX will get notified about the SMS and not the Native INBOX and should not store messages to Native Inbox. only application X will know about the sms.

It would be helpful if we get some solutions so that we can avoid the messages going to Native Inbox.